Bay Area ZX80/81 User's Group (BAZUG) Newsletter 1:4 Aug 1982

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SRY AREA 2XE/ ol co GROUP

"Restart without reload", "BASIC FUN: book review", VEY ADS
ee

Fl sincLaie ZX SPECTRUM UPDATE
Sinclair's lastest computer seems to have

made a dig hit in America wears Ee Leer aL
unit ae. sold here. It is the featured ibe Bie some oe ae the. last

cover article of not one, but +wo computer al loth ar ROBOTEK in
montnlies, POPULAR COMPUTING and

MICLOCOMPUTING. Tne. Semember ioe Leesa fi uture. meshing will

too lenathy to reprint here; they oe start at 7:30 pmo a Je!

detail about the actual and nai plenty of time for ail

uses of the poeeuns OF atest arrive.

nw eee +b th ee ay i oO jee aon «Kiera Paulsen has access
Pas oss hss fape in Mics

a be ae ENeS -witmness Read ng oh fe 2 tap C-

on Sinclairg mini-disks that will previe

retail for under 4100.00. Unfortunately, «Jim March offered ‘he Use

neitner art icle discusses WHEN you or several books with direct

will be ale to purchase ° “Uncle Clive's’ eee He towards machine

latest wonder. enroe

rami a
Thee er :

Rick Link is our a club
secretary.

“We have approximately $29
in the bank. Expenses have
een around #15 q month

on tne newsletter Can we
Start that, library we've
discussed?

eMICRO DEVELOPMENTS

| ee te Hh ee of

wick DEVELOPMENTS expansion

beards. Jim gave a brief +our

of the zxsi’s insides and then

hooked up an expansion board

with Joy stick and flight- ie

software. Mike and Sint discussed
applications such as remete

sensors for labs. PLEASE sec

ADVERTISEMENT ON BACK PAGE.

(4/5) 524- 3730

MEETING STARTS 7:30 PM

ROBOTEK
; lIO545 B SAN PABLO AVE
EL CERRITO, CA. 94530

ADVERTISEMENT,

(Computer

doentinuum

Seminar

i : ; :
"Using And Interfacing The
Sircair ZX8l Microcomputer

Saturday August 21, 1982
llam to 5 pm

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INFORMATION:

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IVINS

AUMUND

The following article is intended as

stimulation for the zx experimenter.
This is not claimed to be fully

tested or fool-proof. Please share
any applications.

BB Restart without Reload
ERIC REITER
I have found a remedy to the
blank-screen -no - nse-to- the —
keybearal-syndrone. IF the program
has led to a dead end ap at it is
caught in an infinite loop, yeu can
offen get out of it without reset-
ting the system. Try hitting the

wre ve ons mV rt . nee yeti Raed Fees Cre
WaT pia Witt, G Wite Tiea yo

ground. This has saved me a lot
of grief in debugging simple
rams in Basic and machine

lariquage while using a static RAM.

TOP 1A
BOT 18x

VIEW FROM BACK, ZX8! *

Eric said he has not used thie with a
loK RAM; would like +o hear how it
works. He stresses momentary

i ry
contacts baunte the wipe

Fyrarsion Board
Bare Board $34.45
Kit 66.40
WHE Moaulator 15,98
Program:

Using Machine Code on |
the Sinclair Computer with
8K ROM 3,20

Ail prices include 612%
sales tax and shipping .

Computer Continuum
30] \6th Ave
San Francisco, CA FIIs

We aré a non-profit organization serying
Sinclar ZK and Timee !908 vices, =

PRESIDENT — JIM MARCH
TREASURER — BRUCE BUCHANAN
EDITOR AND

SECRETARY — RICK LINK

Please send all articles, questions, adver-
t+isements to the editor:

654 OTH ST,
RICHMOND, CA, 74905

ALL TRADEMARKS, E1C,, ACE PROTECTED ETC,

ae

& BOOK REVIEW:

BASIC FUN

A KIDS GUIDE To BASIC PROGRAMING
SUSAN DRAKE LIPSCOMB AND MARGARET
ANN ZUANICH
AYON, CAMELOT BOOKS
LIST PRICE:

© 1982
$2.25, LESS AT CROWN BOOKS

Well, here t+ is! The ideal book +o

help your child learn pasic Programing

at a level most utH AND st graders
will excell a its also areaF for
older kids taputts!3 to~use as a
self-paced “COWES QO, a
) 1 5 Fe

Eacn chapter introduces a new
BASIC command; the next chapter
builds on tne previous one. Simole
proarams illustrate each command;
how and where +o use the appropiate
slatement and when, You ate also
encouraged +o experiment with the
ustraréd, even to write your own!
Che purpose of all sel-paced courses)

Fr is recommended that you follow
ie craér in which the beck presents
stmements and proarams since they
build on each other. oe

The price puts this book in the
reach of most children and certainly
all aduits who own computers
SOME ADAPTIONS MUST BE MADE TO
USE SOME PROGZAMS ON THE Zx@I,

sar OS Come Aaa Y ns ae EM ct Oe SY pote) ON | LAD: ‘
Buy IN MOSt-CASES- THE AUTHe ZS-

POINT TO WHERE You MIGHT HAVE
PROBLEMS. SAMPLE PROES —————_—__»

Do you have interference problems
with you ZX and Tv set?

You have several options: )
SHIELD CABLES; 2) SHIELD DIGITAL
CIRCUITRY; 3) REPLACE VHE MopuULaAToR.
WITH UHF; 44) CONVERT TV To MONITOR;
5) GET A MONITOR; ©) 7...

$15.00 from Computer Contnuum.
Dee advertisements through-

out this newsletter, |

Order modulator and plans for |

}
t
SPACE
a ee
This program draws a U.S. rocket ship which blasts off from your |
video terminal. {
See if you can design your own model. H
5 “N
a |
! s XN
{ va mS
; I I i
Feet :
H 7. SIN {
H ZZ) | EAS !
} Zt Al \ i
3 A I I N
i 7 I I |

XN
eoeoeoeo eee eo ee

PROGRAM LISTING
100, PRINT ~ : At

— 110‘ PRINT ~ = se 7

\

\
I
I
1
I
I
1

-
N
°
=
z
a
\
te et ee et ee
”

210 PRINT ~ 4
220 PRINT ~ eereee
230 FOR I=1 TO 15
240 FOR J=1 TO 100

TJ

I
1 NP
eee o

SPELLING

The computer can help you and your friends solve spelling puzzles.
In this game, you have to supply the missing letters needed to cém-
plete the word.

Try writing your own program using a different word. You could
also add other words to this program.

SAMPLE RUN
TRY TO FIGURE OUT THE MISSING LETTERS IN THIS WORD

Cle0Ni2 eo -Sea
THE FIRST LETTER IS?T
WRONGs TRY AGAIN

THE FIRST LETTER IS?7H

RIGHT - THE SECOND LETTER IS7R
WRONG - TRY AGRIN

THE SECOND LETTER IS7E

RIGHT, YOU SPELLED CHROME

PROGRAM LISTING

100 DIM ASC1]>BS(1)
110 PRINT “TRY TO FIGURE OUT THE MISSING LETTERS IN
THIS WORD”

130 PRINT “C kira

140 PRINT “THE FIRST LETTER IS73
150 INPUT

160 IF AS="H~ THEM 180

170 GOTO 240

180 PRINT “RIGHT -

190 PRINT “THE SECOND LETTER IS~#

210 IF BS="E~ THEN 260

1
f 260 PRINT “RIGHT» YOU SPELLED CHROME™
EN

IF . . . THEN: How the Computer Makes Decisions * 87

4h;

ADVERTISEMENT

“The

EASIC FUN

COMPUTER GAMES,
PUZZLES, AND PROBLEMS
CHILDREN CAN Wai re

on COMPUTER CONTROL APPLICATIONS

{| Expansion boards with educational
;; documentation, appiications, ana
applications programs (1K RAM).

8 port bidirectional I/0

IO $109
2 channel A/D, 2 D/A (0-5V) . “J
ADDA $ 97 SE By Susan Drake Lipscomb

and Margaret Ann Zuanich

Clock (millisec-years, pro-

grammable frequency tone

generator, ....) pa ee
BOSi = p2e5

12. OuiB Bw Qi Did fi 1 [EB wi ai

Computer Sytems :
OBusiness Tom Kilpatrick a
©/aboratory Ree k

©Contro/: r - EEx6ERRITO; CA 94530 ;
Lersonal — bey 524- 3730... oe

Credit Card Orders: 800-227-1617
operator 641
(CA, 800-772-3545
operator 641)

Box 1140
2000 Center Street
Berkeley, CA 94704

micro
developments

> Aging
- together

ARZUG

654 YOTH ST.
RICHMOND, CA.
94805

js J Py |
JIM Maren
IZ46 Farinmage AVe

Loy | aa Yen Lf; SERS
COOK: at ja. Fr 44ODS